Speaking of autism there's massive correlation between it and anger issues as well. Though there's a clamp on it cuz muh autism speaks lobby.
But if you know the symptoms you can make an inference from it alongside the studies done with said correlation. Again, it's been established that Autists like making random-ass connections that end up being nothing CONSTANTLY. Which as I said is akin to a cognitive bias that can lead to paranoid schizophrenia. So there's one.
Another one is that flooding/that-other-thing-iforget-the-term-of where the autist reeeeeeees constantly wears himself out, then runs off into his hugbox. To plot whatever the fuck autist dreams he dreams. Flooding is big buttmad.
The last one is the one autism speaks can't lobby against. In that, one of the symptoms from autism is that they can't internalize their own emotions and thoughts properly. Like some dumbass sieve.
tl;dr - he mad. Like a queer.